<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
      <el-row>
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList
            "></el-button>
          </el-input>
        </el-col>
        <el-col :span="6">
          <el-button type="primary" @click="jumpAddGoodsPage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- 商品信息表格 -->
      <el-table :data="goodsList" style="width: 100%" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="goods_name" label="商品名称" width="500px"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量"></el-table-column>
        <el-table-column prop="add_time" label="创建时间">
          <template slot-scope="scope">
            <!-- 通过作用域插槽的方式调用过滤器 -->
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <el-button icon="el-icon-edit" type="primary" size="mini">编辑</el-button>
            <el-button icon="el-icon-delete" type="danger" size="mini" @click="deleteGoods(scope.row.goods_id)">删除
            </el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页 -->
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
        :current-page.sync="queryInfo.pagenum" :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      total: 0,
      goodsList: []
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 获取商品列表信息
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取商品列表失败！')
      this.$message.success('获取商品列表成功！')
      console.log(res)
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    // 页面容纳大小改变的事件
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 页面页数改变时的事件
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 商品列表删除按钮的点击事件
    async deleteGoods (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult == 'cancel') return this.$message.info('已取消删除')

      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status != 200) return this.$message.error('删除商品失败！')
      this.$message.success('删除商品成功！')
      this.getGoodsList()
    },
    // 跳转到添加商品的页面
    jumpAddGoodsPage () {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
.el-col {
  margin-right: 10px;
}
</style>